Instruction Manual - DECA | Diving Equipment Company of America

INSTALLATION & OPERATION
BATTERY CONDITION CHECK 6.3
Power On - Battery Check
Turn power switch "ON" and observe the battery condition indicator. The battery indicator will
display the condition of the battery.
A steady green light indicates the battery has sufficient voltage to operate the unit.
A blinking green light indicates the battery is low and will need charging shortly, 2 hours of
operating time remain.
A steady red light indicates the battery voltage is too low to operate the unit.
Communication should stop.
NOTE: A battery which has not been used for a period of time will display a higher voltage state
when initially turned on, this will rapidly dissipate. This condition is known as a surface charge,
when the battery is placed under a load the voltage will fall rapidly. It is a good idea to leave the
unit on for 5 minutes before relying upon the battery condition indicator.
Battery life is rated at 300 charge cycles, or 3 years. As with all batteries gel cells must be treated
with a certain amount of care to achieve full life cycle. The most important single factor is not to
continue to use the battery when the battery is discharged. The second precaution, which must be
followed, is the prompt recharging of discharged batteries.
BATTERY INSTALLATION 6.4
The unit is supplied with a single gel cell sealed lead acid battery and an internal charger. To
remove and install the battery, power switch should be off, unplug unit from AC line, remove the
four brass thumb screws from the front panel and lift unit out of the case. Set brass screws aside
in a safe place where they won’t be lost. Set unit on flat stable surface with front panel facing up.
Remove the four screws located on the sides of the chassis. Lift out radio using the handles and
set it on its right side (side away from speaker). The 12V battery is now accessible. Lift out battery
and remove color-coded slide terminals. Install the battery and close unit in the reverse order.
WARNING: A momentary reversal of polarity will destroy the electronics of the unit. There is a
fuse F3 in the charger card located next to J2. When reversing internal battery terminals, this fuse
will blow to protect the electronic circuits and wires from being damaged. F3 fuse is replaceable
with 3.15A-250V Slow Blow Micro Fuse.
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